Switch to microdroid variants of first and second stage init

Bug: 287206497
Test: atest MicrodroidTestApp
Change-Id: Icc39a2265f49fa936aec8446e4a73d76a346df41
diff --git a/microdroid/Android.bp b/microdroid/Android.bp
index 1395d30..37f68a2 100644
--- a/microdroid/Android.bp
+++ b/microdroid/Android.bp
@@ -48,7 +48,7 @@
     avb_hash_algorithm: "sha256",
     partition_name: "system",
     deps: [
-        "init_second_stage",
+        "init_second_stage.microdroid",
         "microdroid_build_prop",
         "microdroid_init_debug_policy",
         "microdroid_init_rc",
@@ -220,7 +220,7 @@
 android_filesystem {
     name: "microdroid_ramdisk",
     deps: [
-        "init_first_stage",
+        "init_first_stage.microdroid",
     ],
     dirs: [
         "dev",